Vintage Asylum

RE: Those (Heathkit) Altec loudspeakers :)

75.195.208.28

Tom Brennan

In Reply to: RE: Those (Heathkit) Altec loudspeakers :) posted by mhardy6647 on July 26, 2022 at 03:28:39

Yeah, I had a pair of the AS-21s, they both looked and sounded gorgeous. Somewhere along the line I replaced the 804 compression driver with a GPA 902 and it sounded better. Maybe?

Follow Ups:

RE: Those (Heathkit) Altec loudspeakers :) - Hornlover 08:16:02 08/11/22 (0)
The 902 probably has better HF extension. The original 800 series drivers were designed to roll off above 8k, the upper limit of 35mm film optical sound tracks, in order to lower noise in that upper part of the spectrum. This is from to book 'Audio Cyclopedia', by Howard Tremaine.
You'd think adding fiberglass on walls would improve it...nt. - Coner 11:13:11 08/10/22 (1)
nt
- RE: You'd think adding fiberglass on walls would improve it...nt. - Tom Brennan 11:37:02 08/11/22 (0)
  Not in my frontroom. :-)

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